Moen T2703EP Level Posi-Temp Tub/Shower, Chrome chrome finish to create a bright, highly reflective, cool grey metallic look lever design for ease of use PosiTemp pressure-balancing valve maintains water pressure and controls temperature 4-Inch diameter Moen Posi-Temp valve not included No. Valve 2510 or 2590 or 2570 or 2520, sold separately required for operation